Acne is caused by clogged pores or follicles (small openings in the skin) that contain a hair and sebaceous (oil) gland. It can show up anywhere on the body but it is usually found on the face, back, shoulders, and chest. Follicles become clogged with dead skin cells and oil (called sebum) made in the pore.
Humans have hundreds of hair follicles, or pores, on the surface of the skin through which hair grows. Deep inside each follicle is a hair shaft attached to small glands called sebaceous glands. These glands make an oily substance called sebum to moisten our hair and skin. Sometimes when too much sebum is made, it can mix with dead skin cells (that we are constantly shedding) to create a sticky plug. Trapped bacteria called P. acnes grow very fast in these plugged follicles and make chemicals that can cause swelling, redness, and pain. Eventually, the plugged follicle can burst and spill everything – oil, dead skin cells, and bacteria – onto the skin surrounding other follicles.
When a person becomes a teenager and goes through puberty, their body makes more hormones (especially androgen hormones). This can make sebaceous glands enlarge and too much oil or sebum can be made. Sebum is supposed to carry dead skin cells up to the surface of the skin, but when there is too much of it, it clogs the pores leading to whiteheads, blackheads, pimples, and cystic acne.
Acne Vulgaris is the most common form of acne which includes several types of pimples. These acne lesions include blackheads, whiteheads, papules, pustules, nodules and cysts.
Mild to moderate acne vulgaris consists of the following types of acne spots:
Severe acne vulgaris is characterized by nodules and cysts:
Acne Rosacea can look similar to the aforementioned acne vulgaris, and the two types of acne are sometimes confused for one another. It appears as a red rash which is normally confined to the cheeks, nose, forehead and chin. The redness is often accompanied by bumps, pimples, and skin blemishes.
Prior to Photodynamic Acne Treatment, the best available treatment option for resistant and cystic acne was Roaccutane. However, there are many side effects linked to the use of with Roaccutane including birth defects, liver abnormalities, depression, and virtually all patients experience dryness and night vision changes.
Photodynamic (PDT) Acne Treatment provides a viable alternative to all types of Acne Treatment without having negative systemic effects.